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Fix overflow in AV1 parser.

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This commit is contained in:
Juliusz Chroboczek 2024-04-14 15:11:30 +02:00
parent adf2ace0a4
commit 8bbf9d16d0
1 changed files with 3 additions and 0 deletions
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3
codecs/codecs.go
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@ -65,6 +65,9 @@ func Keyframe(codec string, packet *rtp.Packet) (bool, bool) {
if len(data) <= offset { if len(data) <= offset {
return nil, offset, offset > 0 return nil, offset, offset > 0
} }
if offset >= 4 {
return nil, offset, true
}
l := data[offset] l := data[offset]
length |= int(l&0x7f) << (offset * 7) length |= int(l&0x7f) << (offset * 7)
offset++ offset++